Spheres of the Earth
The layer of the earth that includes living organisms
Biosphere
This names everything that takes up space and has mass.
Matter
The source of most energy on earth.
The sun.
Colorless, odorless gas that occurs abundantly in nature and as a product of certain human activities - a greenhouse gas that is more potent than carbon dioxide.
Methane.
A dark shape made when an object blocks light.
Shadow
All of the water on Earth.
Hydrosphere
Adding milk to your hot cocoa is an example of a
_____________ system
Open system
Model made of intersecting food chains.
Food web.
Wetlands, landfills, cows, oceans, termites, fossil fuels are...
Sources of methane
Earth moves in a circle around the sun once every 365.25 days.
Orbit
78% of this sphere is nitrogen
atmosphere
When energy is needed to run a chemical reaction and is taken from the surroundings the environment cools down. An example is mixing vinegar and baking soda. What type of experiment is this?
Endothermic
Living things that break down dead and decaying organisms.
Decomposers.
An anaerobic organism does not need what element?
oxygen
When it is summer in the United States, it is what season in Australia.
Winter
All of the spheres
hydrosphere, biosphere, atmosphere, geosphere
When two or more different substances are mixed, and a new substance with different properties may be formed.
A chemical reaction.
Dead organic materials.
Detritus
These microorganisms feed on methane.
methanotrophs
This causes day and night.
Earth revolving on it's axis.
Name two of Earth's spheres that can be found to interact within the process of erosion.
Geosphere and hydrosphere, or biosphere, or atmosphere.
You can measure and identify a substance using these.
Physical properties.
Nutrients and living matter are passed from producers to consumers, then broken down by decomposers. Decomposers break down dead plant and animal matter.
Matter cycles through an ecosystem.
This ice consists of water molecules that are frozen around methane.
methane hydrates
The area of the shadow where only a portion of the Moon is in front of the Sun.
Penumbra